I have a Zalman CNPS7700-Cu fan on my processor which runs at about 1600RPM at the CPU sits at about 50c when just doing normal windows things like internet browsing etc.

The problem i have is that when just doing normal windows things my computer will either restart(no warning, just cuts out) or i'll get the blue screen saying i've had a hardware malfunction. I'm not sure if these problems are related or not. When i get back into XP Pro i send the error report off too microsoft. I then get the internet browser up saying that the problem was caused by my RAM on some occassions but on others it says it was caused by a device driver but doesn't know which one. I have tested my RAM using BURNITTEST and it doesn't report any errors.

I have tested both of my memory modules individually with the memory tester like you reccomended and i have found some errors. I wonder if you can determin whats wrong with them and if i need to replace 1 or both of the memory modules. Here are the results.

I just happen to have a brand new spare 512mb stick of RAM which i have plugged in. I thought i might as well test it and to my horror it picked up a lot more errors than my existing sticks. I think it picked up 8 errors and it hadn't even finished the 2nd Pass.

This leads me to think that it might be another problem, perhaps the motherboard. Or maybe i have no luck when it comes to buying new RAM.

My PSU is listed below and i bought it fairly recently and it wasn't that cheap. £25.

Pcicase PMC1058PV 300w P4 ATX 12v PSU.

I will check my mobo tomorrow and also give it a clean. there's minimal dust in there as it is as i like to keep it dust free. I have recently purchased a zalman fan to keep the cpu cool thinking that this was the problem.

What i mean by more options in the future is that if i was to get, lets say, another hard disk and maybe another optical drive then i'd still have enough power with that PSU rather than having to purchase a new one.